Additional Listing

SDL plc

Application for Additional Listings

Application has been made to the UK Listing Authority and the London Stock Exchange for 48,218 ordinary shares of 1p each in the capital of SDL PLC to be admitted to the Official List and admitted to trading. These shares are issued as part consideration pursuant to the acquisition of Pass Process Automation Software Systems Engineering GmbH in 2007.

Application has also been made to the UK Listing Authority and the London Stock Exchange for a block listing totalling 500,000 ordinary shares of 1p each in SDL PLC. These shares will be allotted and issued in due course upon the exercise of options pursuant to the Company's obligations under the SDL Unapproved Option Scheme 1999.

These shares will rank equally with the existing issued ordinary shares of the Company and admission is expected to become effective and dealings to commence in these shares on 25 June 2010.

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Further enquiries:

Pamela Pickering

Company Secretary

Tel: 01628 410 100